PSP firmware gets an update

Sony has updated the PSP firmware to version 4.05.

You can download it now (well spotted VG247), and it adds some music visualisations. Obviously that's something we really wanted.

PSN boss Eric Lempel suggested there are "other features" hidden in there, but it's not clear precisely what they are right now.

We will reward you if you can find them, Eurogamer reader.